2003 Alpina B7 vs. 2006 Jaguar XJR
To start off, 2006 Jaguar XJR is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Alpina B7. In addition, the cost of maintenance, including insurance, on 2003 Alpina B7 would be higher. At 4,399 cc (8 cylinders), 2003 Alpina B7 is equipped with a bigger engine. In terms of performance, 2003 Alpina B7 (492 HP @ 5500 RPM) has 92 more horse power than 2006 Jaguar XJR. (400 HP @ 6100 RPM). In normal driving conditions, 2003 Alpina B7 should accelerate faster than 2006 Jaguar XJR. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina B7 weights approximately 256 kg more than 2006 Jaguar XJR. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2003 Alpina B7 (700 Nm @ 4250 RPM) has 140 more torque (in Nm) than 2006 Jaguar XJR. (560 Nm @ 3500 RPM). This means 2003 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2006 Jaguar XJR.
Compare all specifications:
| 2003 Alpina B7 | 2006 Jaguar XJR | |
| Make | Alpina | Jaguar |
| Model | B7 | XJR |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4399 cc | 4195 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 492 HP | 400 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 700 Nm | 560 Nm |
| Torque RPM | 4250 RPM | 3500 RPM |
| Engine Compression Ratio | 9.0:1 | 9.1:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 295 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5.5 seconds | 6.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1990 kg | 1734 kg |
| Vehicle Length | 5180 mm | 5100 mm |
| Vehicle Width | 1910 mm | 1950 mm |
| Vehicle Height | 1450 mm | 1450 mm |
| Wheelbase Size | 3000 mm | 3040 mm |
| Fuel Tank Capacity | 88 L | 84 L |
